Doctor profile · Federal record

Dr. Gary Schaffel, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Lake Forest, IL

  • NPI 1336123884
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
990 S Waukegan RD Ste 200
Lake Forest, IL 600452654
(847) 234-8100
fax (847) 234-8199

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
September 5, 2024
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Illinois #036093564

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336123884. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,127
Distinct HCPCS
10
Medicare allowed
$59,975
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 388 171 $30
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 186 165 $15
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 152 152 $133
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 112 11 $20
G0008 Administration of influenza virus vaccine 85 85 $26
90662 Influenza vaccine split virus, preservative free 79 79 $69
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 46 46 $283
G0009 Administration of pneumococcal vaccine 45 45 $26
99214 Established patient office or other outpatient visit, 30-39 minutes 22 20 $30
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 12 11 $54

In context: peer comparison

Among 7 peers in Lake Forest Internal Medicine Physician, average services per provider: 105. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$371
Transactions
6
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Edwards Lifesciences Corporation 2 $200.42
Amgen INC. 1 $109.14
Boehringer Ingelheim Pharmaceuticals, INC. 1 $23.86
Novo Nordisk INC 1 $19.42
Lilly USA, LLC 1 $18.23

By nature of payment

Food and Beverage
$371

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,893
Patients
422
Total drug cost
$148,354
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 242 57 $2,962
Atorvastatin Calcium Generic 239 65 $4,593
Rosuvastatin Calcium Generic 176 48 $2,756
Metoprolol Succinate Generic 135 26 $2,574
Eliquis (Apixaban) Brand 123 23 $107,608
Levothyroxine Sodium Generic 120 23 $1,396
Irbesartan Generic 118 29 $3,942
Synthroid (Levothyroxine Sodium) Brand 109 23 $10,908
Celecoxib Generic 105 21 $3,010
Metoprolol Tartrate Generic 99 12 $717

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Schaffel's medical specialty?
Dr. Gary Schaffel practices Internal Medicine Physician in Lake Forest, IL.
Where does Dr. Gary Schaffel practice?
Dr. Gary Schaffel practices at 990 S Waukegan RD Ste 200, Lake Forest, IL 600452654. Office phone: 8472348100.
What is Dr. Gary Schaffel's NPI?
Dr. Gary Schaffel's National Provider Identifier (NPI) is 1336123884, issued by NPPES.
Does Dr. Gary Schaffel accept Medicare assignment?
Yes. Dr. Gary Schaffel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Schaffel commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.